The Cisco ASR 920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Router power supplies are
hot-swappable. If you have installed redundant power supplies, you can replace a single power supply
without interrupting power to the router.
Note
To avoid erroneous failure messages, allow at least 2 minutes for the system to reinitialize after a power
supply has been removed or replaced.
Caution
When installing or replacing the unit, the ground connection must always be made first and disconnected
last. Statement 1046
Warning
Before performing any of the following procedures, ensure that power is removed from the DC circuit.
Statement 1003
Warning
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Statement 1030
Warning
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Warning
Follow these steps to remove and replace the DC power supply on the Cisco ASR 920-24SZ-IM,
ASR-920-24SZ-M, ASR-920-24TZ-M Router:
SUMMARY STEPS
1.
Before servicing the power supply, switch off the circuit breaker in your equipment area. As an additional
precaution, tape the circuit-breaker switch in the Off position.
2.
Slip on the ESD-preventive wrist strap that was included in the accessory kit.
3.
Switch the power supply circuit-breaker switch to the Off (O) position.
4.
Pull the terminal block plug connector out of the terminal block head in the power supply.
5.
Loosen the captive screw on the DC power supply. See the figure below.
6.
Grasping the power supply handle with one hand, pull the power supply out from the chassis while
supporting it with the other hand.
7.
Replace the DC power supply within 5 minutes. See
Installing a DC Power Supply
figure. If the power
supply bay is to remain empty, install a blank filler plate (Cisco part number 800-39165-01) over the
opening, and secure it with captive installation screws.
Cisco ASR-920-24SZ-IM, ASR-920-24SZ-M, ASR-920-24TZ-M Aggregation Services Router Hardware Installation
Guide
83
Installing the Router
Removing and Replacing a DC Power Supply
Содержание ASR-920-24SZ-IM
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